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Darwin C, Wallace A. 1858. On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection. Journal of the Proceedings of the Linnean Society of London : Zoology 3(9): 53-62 (45-62). Article first published online: 13 APR 2011 | DOI: 10.1111/j.1096-3642.1858.tb02500.x

Wallace AR. 1860. On the Zoological Geography of the Malay Archipelago. Journal of the Proceeding of the Linnean Society of London: Zoology 4: 172-184. Article first published online : 28 JUN 2008, DOI: 10.1111/j.1096-3642.1860.tb00090.x

Wallace AR. 1865. On the Phenomena of Variation and Geographical Distribution as illustrated by the Papilionidæ of the Malayan Region. Transactions of the Linnean Society of London 25: 1-71. Article first published online : 22 JUL 2008, DOI: 10.1111/j.1096-3642.1865.tb00178.x

Wallace’s Line and plant distributions: two or three phytogeographical areas and where to group Java? Biological Journal of the Linnean Society 103: 531-545. Article first published online : 16 JUN 2011, DOI: 10.1111/j.1095-8312.2011.01647.x

Lowry DB. 2012. Ecotypes and the controversy over stages in the formation of new species. Biological Journal of the Linnean Society 106: 241-257. Article first published online : 4 APR 2012, DOI: 10.1111/j.1095-8312.2012.01867.x